一种具有八面体笼的微孔铈基金属有机框架材料，对氙的吸附选择性远高于氪。
A microporous Ce-based MOF with the octahedron cage for highly selective adsorption towards xenon over krypton.
作者信息
Wu Xiaoling, Li Zi-Jian, Zhou He, Li Lin, Qian Zhenghua, Qian Nan, Chu Xinxin, Liu Wei
机构信息
Shanghai Institute of Applied Physics, Chinese Academy of Sciences Shanghai 201800 China
University of Chinese Academy of Sciences Beijing 100049 China.
出版信息
RSC Adv. 2021 Sep 17;11(49):30918-30924. doi: 10.1039/d1ra04824d. eCollection 2021 Sep 14.
The collection of high-purity noble gases with recyclable nuclides provides substantial economic benefits and minimizes the risk of environmental pollution, which is a future development tendency for nuclear industries. Here, Ce-SINAP-1, with its radiation-resistance (up to 20 kGy of γ-ray irradiation) and suitable pore channels for the separation of noble gases (Ar, Kr and Xe), was synthesized. Ce-SINAP-1 exhibited the selective adsorption of Xe (2.02 mmol g) over Kr (0.67 mmol g) and Ar (0.27 mmol g) at 293 K (1 bar) with a Henry's selectivity of 8.24 (Xe/Kr), and an ideal adsorbed solution theory selectivity of 14.9 (Xe : Kr 20 : 80). The result of the dynamic breakthrough experiment also indicates a good separation for Xe/Kr with Ar.
收集具有可回收核素的高纯度稀有气体可带来可观的经济效益，并将环境污染风险降至最低，这是核工业未来的发展趋势。在此，合成了Ce-SINAP-1，它具有抗辐射性能（γ射线辐照剂量高达20 kGy）以及适合分离稀有气体（Ar、Kr和Xe）的孔道。在293 K（1 bar）下，Ce-SINAP-1对Xe（2.02 mmol g）的选择性吸附高于Kr（0.67 mmol g）和Ar（0.27 mmol g），亨利选择性为8.24（Xe/Kr），理想吸附溶液理论选择性为14.9（Xe : Kr 20 : 80）。动态突破实验结果也表明Xe/Kr与Ar之间具有良好的分离效果。
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